nymea/libnymea/interfaces/extendedevcharger.json

{
    "description": "An extended version of the EV-charger interface. Supports regulation of percentage in addition ot be powered on or off.",
    "extends": "evcharger",
    "states": [
        {
            "name": "percentage",
            "type": "int",
            "min": 0,
            "max": 100,
            "writable": true
        }
    ]
}